Burner for gas-stoves.



No. 760,786. PATBNTBD MAY 24, 1904.`

LHAGE. BURNER POR GAS sTovEsv.

APPLICATION FILED DEO. 21. 1903.

ro MODEL.

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UNITED STATES y atented May 24, 1904.

PATENT OFFICE.

BURNER GAS-STOVES.

SPECIFICATION? forming part of Letters Patent No. 760,786, dated May 24, 1904.

" Applioaion'leanecembe;21,190s. serialNo. 186,080. mamada.

To all whom t may concern.-

Be it known that 1', EDUARD HAGE, asubject of the King of Prussia, German Emperor, residing at Hildesheim, in the Empire of Germany, have invented certain new and useful Improvements in or Relating to Burners for Gas Cooking or Heating Stoves and the Like, of which the following is a specification.

This invention relates to improvements in burners for gas cooking or heating stoves and the like, its object beingthe construction of a burner in which all the air necessary for the combustion of the mixture of gas and airused in the burner is supplied to the inside of a ring-like burner, and thus on its way to the stove or heating-flue has to pass through the flame and be heated.

The burner may be of any desired form`- such, for example, as a circle, an ellipse, a cross, or a star-but whatever its shape it will for the purpose of thisspecication be described as ring-like. rlhe outlets for the mixture of gas and air used are upon the inside of the burner, and the air admitted passes up thro ugh the central space inclosed by the walls of the burner, the quantity being preferably regulated-say by avalve-to suit the quality and quantity of gas used.

In'the accompanylng drawmgs, Figures l and 2 are respectively a central vertical section and a plan of one form of burner according to this invention. burners mounted on a common supply-pipe.

Fig. 4 is a centralvertical section of a burnerl having -two concentric rings. Fig. 5 is a plan of the same. y Figs. 6 and 7 are respectively aplan and acentral vertlcal section of a burner i having three concentric rings with separate inlets, and Flgs. 8 and 9 are respectively a vertical section and an elevation of portions of a burner also'according to this invention and are drawn to a larger vscale than the rest of the figures.

With reference first to Figs.` l and 2, A is the outer wall of the burner, and B the inner wall, of slightly less height than the outer one,

so that a cap or cover C, which fits closely on the top ofthe outer wall A, leaves a gap at the top edge of theinner'wall B. The cap C overlaps the inner wall B and is provided with A through the holes E Fig. 3 is a plan ,showing two downwardly-projecting teeth C', which cover portions of the space above the inner wall B,

so that that space is divided up into a series of outlet-openings from which the mixture of gas and air supplied to the conduit formed by 5 5 the walls and the cover through an inlet D, Fig. 2, can issue. A plate E at the bottom Iof the burner is formed with holes E', which can be closed or opened by turning a perforated valve-plate F beneath the plate E, and the only 6o air admitted to the burner has to pass up to thecentral space inside the burner. The outer wallAis formed with a flange A', which fits practically airtight uponthe bottom of an exterior casing G, having a top plate Gr. The overlapping of the cover-plate or cap C Cprevents the danger of any liquid which may boil over falling into the burner; but the burner may be readily cleaned when necessary by removing 7o the cover-plate and taking out the inner wall B.

In Fig. 3 two burnersL generally similar to that described with reference to Figs. l andl 2 are shown mounted upon a common inlet-4 pipe D. When two or more burners are placed 75 near each other, as shown in Fig. 3, it is convenient to form ignition-holes in the coverplates, as atGZ. in such position that when the gas-supply cock is opened and a light applied to one hole the ignition-flame will automatic- 8o ally jump to the adjacent holes, and thus ignite all the burners, which are of course all extinguished together when the cock is turned olf.

In the burner illustrated .in Figs. 4; and 5 there are two concentric ring-like y'burners- 85 one formed, as in the previous construction, by the outermost flanged wall A A and its inner Wall B and within' the space inclosed by this ring a smaller conduit formed by walls A2 and B2. covers C C', corresponding to that illustrated in Figs. 1 and 2, and in this construction the cover-plates may be formed together or may be made separately. The outerwall A2 of the inner conduit and the inner wall B of theQ outer conduit are joined by cross-passages D2, so that both concentric rings are supplied from the one inlet-pipeD3. It will be seen that the mixture of gas and air can issue only fromthe top edge of the inner circumference Both conduits are provided with 9o` of each of the conduits, and the air to aid combustion is supplied through valve-regulated openings E2 to the central space inclosed by the inner ring and the annular space between the rings.

In the construction illustrated in Figs. 6 and 7 three concentric conduits are provided, formed, respectively, by walls A B, A2 B2, and A3B3, each conduit being provided with a cap or cover C. In this construction also air is admitted, as indicated by the arrows, only to the central .spaces and to the annular spaces H H. Separate inlet-pipes Di are shown, so that either of the ring-like burners may be used separately.

Figs. 8 and 9 show the details of construction of a single burner, as shown in Figs. l and 2, drawn to a larger scale, Fig. 8 being a section through the conduit and its supplypipe D and Fig. 9 an elevation showing the rectangular teeth C on the cap or cover C.

It is to be noted that alterations in the details of lconstruction of the various parts may be made without departing from the spirit of this invention. For instance, the teeth of the cap C need not be rectangular, nor need there necessarily be any teeth at all on it; but the gas may issue from the inner circumference of the ring-like burner through an annular Slot.

It is to be noted that all the burners may be used in conjunction with an external casing of some shape or form which will prevent air passing to the fiame and into the stove otherwise than through the passages which lead to the internal surfaces at which the gas is ignited.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In a gas-burner the combination of a plurality of concentric ring-like conduits each having outlet-holes in its inner face only, an external casing to prevent access of air round the outside of the outer conduit, inlets for admitting a mixture of gas and air to the conduits and valve-controlled passages for admitting air to the space inclosed by the conduits, substantially as set forth.

2. In a gas-burner the combination of a plurality of concentric ring-like conduits each having outlet-holes in its inner face only, an external easing to prevent access of air round the outside of the outer conduit, an inlet for admitting a mixture of gas and air to the conduits, connecting-passages between the conduits and valve-controlled passages for admitting air to the space inclosed by the conduits, substantially asset forth.

3. In a gas-burner the combination of an outer wall, an inner wall of, less height than the outer wall and forming with it a conduit, a cover fitting on top of the outer wall, downwardly-projecting teeth on the inner edge of said cover to divide the space on top of the inner wall into a number of outlet-passages,

an inlet for admitting a mixture of gas and air to the conduit, and a valve-controlled passage to control the admission of air to the space inclosed by the inner wall, substantially as set forth.

4. In a gas-burner the combination of an outer wall, an inner wall of less height than the outer wall and forming with it a conduit, a cover fitting on top of the outer wall but leaving a space at the top of the inner wall, a passage to admit air to the space inclosed by the inner wall, an external casing to prevent the access of air to the outside of the conduit, and an inlet for admitting a mixture of gas and air to the conduit, substantially as set forth.

5. In a gas burner the combination of an outer wall, an inner wall of less height than the outer wall and forming with it a conduit, acover fitting on top of the outer wall but leaving aspace at the top of the inner wall, downwardly-projecting teeth on the inner edge of said cover to divide the space on top of the inner wall into a number of outlet-passages, a valve-controlled passage to admit air to the space inclosed by the inner wall, an external casing to prevent access of air to the outside of the conduit, and an inlet for admitting a mixture of gas and air to the conduit, substantially as set forth.

6. In a gas-burner the combination of a plurality of concentric ring-like conduits, the inner wall of each conduit being of less height than the outer wall and forming with it a conduit, a cover with projecting teeth which closes each conduit except at the inner circumference where the spaces between the teeth form outlet-openings, valve-controlled passages to admit air to the spaces inclosed by the ring-like conduits, inlet-passages for admitting air and gas to the conduits and an external easing to prevent access of air to the outside of the burner, substantially as set forth.

7. In a burner the combination of a plurality of concentric ring-like conduits, the inner wall of each conduit being of less height than the outer wall and forming with it a conduit, a cover with projecting teeth which closes each conduit except at the inner circumference where the spaces between the teeth form outlet-openings, valve-controlled passages to admit air to the spaces inclosed by the ring-like conduits, a flange on the outermost conduit, inlet-passages for admitting air and gas to the conduits and an external casing adapted to engage with the flange and prevent access of air to the outside of the burner, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two suhscribing witnesses.

EDUARD HAGE.

Witnesses:

LEoNoRE RAseI-I, H. HALL HALL.

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